Antirattler or bumper



J. HALLMAND.

ANTIRATTLER OR BUMPER.

APPLICATION FILED AUG.2I, 1919.

1,356,685. Patented Oct. 26, 1920.

7' III STATES T ,OFFlc JOHN T. ALL MAND, or HIGHLAND PARK, MICHI AN, ASSIGNOR 'ro TERNSTEDT' MANUFACTURING 00., or DETROIT, IGAN'.

To all whom it may concern:

Be it known that 1, JOHN T. ALLMAND.

a citizen of'the United States, residing. at.

Highlan l Park, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Antirattlers or Bumpers, of which the following is a specification.

This invention relates to anti-'rattlers for automobile doors. It has for its object an anti-rattler which can be placed on the door post, sill and header of a closed body job, or on the door post and sill of an open body. Another feature is that the contact member is a rolling one, avoiding abrading friction andavoiding unusual effort in closing the door. I a

A very important feature is that the anti rattler can be adjusted to stress the door not only outwardly to hold the latch firmly against the latch socket but the main line of stress is on the plane of the door to avoid any objectionable play of the door in the door frames. These and other objects will be better understood after the detailed structure is explained.

In the drawings,-

Figure 1 is a horizontal section of a portion of an automobile body, showing the anti-rattler applied to the door post and the door sill.v

Fig. 2 is a fragmentary section of a door and door post, showing the parts of the antirattler in section.

Fig. 3 is a section of the anti-rattler and door post showing how the parts are assembled.

Fig. 4 is an elevation of the anti-rattler cap.

Fig. 5 is an elevation of the striker plate.

Fig. 6 is a cross section of the striker plate.

a designates the door post, b the door sill and c the door provided with the usual latch 11. A barrel 6 provided with external threads 7 at its outer end and internal threads at both ends forms a socket for the operating parts. A screw plug 9 closes the inner end and a. ball-retaining cap it screws into the internal threads of the outer end of the barrel. The opening through the cap is slightly tapered toward the outside to retain the fiber ball z'. The ball is seated in a part-spherical socket j of the plunger 'MICH IG A N, A CORPOBATION OF MICH- ANTIR'ATTLER on BUMPER.

' Specification of I ettersPatent. pdt f 'g 2 1 Application'flled'August 21, 1919. seriarNo. 318,864. Y i i 7 which slides in the sleeve portionofthe cap it. A coiled 'springlbearsagainst the inner side of the plunger and-the sorewg. The latter may be. screwed inand out to reg? ulate its tension. All t hehousing, which includes, the screw plug, barrel, and cap-retaining ball are screw, machine; products, as is also the plunger.- Hence these parts may be manufactured relatively cheaply. The striker plate m is simply a plate perforated for wood screws and providedwith a groove n which has an arc-like cross section and also an arc-like end wall or abutment-o. These arcs areof substantially the radius of the ball. This groove is the ballreceivi'ng groove and the arc-like sides of the groove engaging with-the ball play an important part as they tend to prevent the door moving .up and down, as to do so would require the depression of the ball against the resistance of the spring. The plate can be so placed as to cause the ball to climb onto the abutment 0 and hence the ball also tends to force the door outwardy and hold the latch bolt against the latch socket wall in nonrattling position. The ball, ,of course, thrusts also in the line of the ELXlS of the spring and holds this door from vibrating in that direction.

The anti-rattlers are screwed into the door frame by slipping them first into a bored socket,- the plain portion of the of the diameter of the socket. The cap and its sleeve may then be screwed into the end of the barrel with a spanner wrench and by continuing the turning of this cap after it has been screwed home the barrel may be barrel being external threads f are of greater diameter than the plain portion of the barrel and the socket. By making the cap detachable from the barrel no occasion will arise for the removal of the barrel and the mutilation of the wooden threads formed in the socket. The plug 1 has a enables it to be turned with a tool inserted from the outside to adjust the tension on the spring Z. l

These anti-rattlers may be placed upon both door posts if the sill, and. in a closed body, upon the header of the door frame. However, it will be apparent that a single anti-rattler functions not only in the line of the spring stress square hole 72 which but also, by reason of the ball and the groove of the same 'radius,resis ts movementin the plane of the door in any direction except' directly away from the ball. WVhe'n the ball is made to engage with the curved abutment at the end of the groove it stresses--- the door outwardly and also in alldirections included within the 90 angle from the plane of-the door to a linedrawn tangent to its swinging are at the point of inward limit of swing. In short, when the ball engages the abutment at the end of the groove, the curved Wall of the abutmentand the curved side walls of the groove, both curves being of substantially the radius of the ball, there is a stressing of the door that is universal Within one quarter of space.

The deviceis especially well adapted for doorsills as it presents no obstacle on the sill to stumble over or be scufled and worn down. The ball when stepped upon simply withdrawsinto the casing.

' What I claim is:

1. A device. for the purpose specified, hav

ing in combination, a striker plate. provided with a groove having asloping wall and the inner end of the groove provided with a sloping abutment, a housing,-a ball partiallyprojecting from the housing and adapted.

to ride in the groove of the striker plate,

and means for yieldingly projecting the ball from the housing.

2. A device for the pur ose specified, having in combination, a stri (er plate provided with a groove having a curved section and an end abutment formed upon the same Y striker member on the door provided with a sloping surface, a springcontained in the container, and a ball partially pressed from the container by said spring and adapted to be struck by the said sloping surface of the striker, the said sloping surface being so located that the ball engages thereagainst permanently when the door is latched and said sloping surface being so directed that the pressure of the ball tends to open the 7 door and hence holds the latch bolt firmly in its recess.

JOHN T. ALLMAND. 

